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Finding the Fourth Proportional to 114,722.66, 172,193.48 and 70,435.91

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Solution

The fourth proportional to 114,722.66, 172,193.48 and 70,435.91 is: 105,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,722.66 : 172,193.48 = 70,435.91 : x
  2. Step 2: Convert to fraction form
    114,722.66/172,193.48 = 70,435.91/x
  3. Step 3: Cross multiply
    114,722.66x = 172,193.48 × 70,435.91
  4. Step 4: Simplify right side
    114,722.66x = 12,128,603,246.72
  5. Step 5: Solve for x
    x = 12,128,603,246.72/114,722.66
  6. Step 6: Final answer
    x = 105,721.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.